Device and method for detecting optical signal of optical backboard

The invention discloses a device and method for detecting an optical signal of an optical backboard. The device comprises different board cards connected with the backboard, the backboard and a detector. The backboard is used for bearing communication signals in at least one board card inserted into a machine frame insertion slot and supporting optical communication between different board cards. The detector is used for detecting an optical mutual connection fault of the optical communication through an optical split port arranged at an optical output port of the backboard, thereby detecting the optical signal. 本发明公开了种用于光背板光信号检测的装置及方法，其中，所述装置包括：连接至背板的不同板卡，背板及检测器；所述背板，用于承载插入到机框插槽中的至少个板卡间的通信信号，支持在不同板卡间进行光通信；检测器，用于通过设置于背板光输出端口的分光口对光通信的光互连故障进行检测，以实现光信号检测。